ggml : fix uninitialized is_on_grid in quantize_row_iq3_xxs_impl (ggml-org#15928)

CISC · web-flow · commit f6b4af3d0476 · 2025-09-23T10:25:20.000+02:00
* fix uninitialized is_on_grid in quantize_row_iq3_xxs_impl

* change initialization to true
diff --git a/ggml/src/ggml-quants.c b/ggml/src/ggml-quants.c
@@ -3721,6 +3721,7 @@ static void quantize_row_iq3_xxs_impl(int grid_size, const float * GGML_RESTRICT
             }
             float best = 0;
             float scale = max/(2*kMaxQ-1);
+            for (int k = 0; k < 8; ++k) is_on_grid[k] = true;
             for (int is = -15; is <= 15; ++is) {
                 float id = (2*kMaxQ-1+is*0.2f)/max;
                 float this_scale = 1/id;

Original file line number	Diff line number	Diff line change
`@@ -3721,6 +3721,7 @@ static void quantize_row_iq3_xxs_impl(int grid_size, const float * GGML_RESTRICT`
`3721`	`3721`	`}`
`3722`	`3722`	`float best = 0;`
`3723`	`3723`	`float scale = max/(2*kMaxQ-1);`
	`3724`	`+ for (int k = 0; k < 8; ++k) is_on_grid[k] = true;`
`3724`	`3725`	`for (int is = -15; is <= 15; ++is) {`
`3725`	`3726`	`float id = (2kMaxQ-1+is0.2f)/max;`
`3726`	`3727`	`float this_scale = 1/id;`